Optical filters are used to manipulate the passage of light both visible and invisible for various applications. There are cut, block and pass filters. These are divided into further categories of short pass, long pass and notch filters. Phillips Safety offers a wide range of filters in both glass and polymers for these applications.
Laser Scanner Filters are used in both handheld and stationary laser scanners as you might find in the supermarket. They are used to enhance the sensitivity of the laser to read the barcodes and also to protect from harmful radiation to the end user. They are set for various wavelengths to accommodate the type of laser being used.
Ultraviolet Cut and Pass filters
UV cut filters are used to block UV emissions and pass all others. There are five types of UV cut filters from 370nm to 480nm available with non-glare and scratch resistant coatings.
UV pass filters block all other wavelengths and pass only UV transmits ultra-violet (80% at 300nm) and offers excellent optical characteristics without double refraction available with non-glare and scratch resistant coatings.
Near Infrared Pass Filters
IR transmits NIR and block visible light. There are five types of NIR filters which transmit above 700nm to 820nm. They have excellent optical characteristics without double refraction available with non-glare and scratch resistant coatings.
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